CN112415083A - Steel wire rope defect rapid detection device under narrow working condition - Google Patents
Steel wire rope defect rapid detection device under narrow working condition Download PDFInfo
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- CN112415083A CN112415083A CN202011391328.2A CN202011391328A CN112415083A CN 112415083 A CN112415083 A CN 112415083A CN 202011391328 A CN202011391328 A CN 202011391328A CN 112415083 A CN112415083 A CN 112415083A
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
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Abstract
The invention discloses a device for rapidly detecting defects of a steel wire rope under narrow working conditions, wherein the steel wire rope to be detected passes through a magnetization part to be magnetized, and then a linear magnetic sensor is used for detecting the magnetized steel wire rope, when the steel wire rope has defects, the output value of the linear magnetic sensor changes, a control circuit board is used for receiving information collected by the linear magnetic sensor, when the detected part of the steel wire rope has defects, the control circuit board controls a buzzer and a warning lamp to send out alarm signals, after the steel wire rope passes through a rotary encoder, the displacement of the steel wire rope is identified through the rotary encoder, and an LCD (liquid crystal display) screen is controlled by the control circuit board to display the output voltage value of the linear magnetic sensor and the displacement value of the steel wire rope in real. The method can quickly detect the defect signals of the surface and the near surface of the steel wire rope and send out an alarm.
Description
Technical Field
The invention relates to the field of steel wire rope defect detection, in particular to a steel wire rope defect rapid detection device under a narrow working condition.
Background
The steel wire rope can be suitable for various unfavorable working conditions, but the steel wire rope can be damaged in a long-term use mode, so that the steel wire rope is easy to break, and casualties of people and damage of hoisting equipment are caused. The existing steel wire rope defect detection technology mainly comprises an optical method, an ultrasonic detection method, an electromagnetic detection method and the like. The optical method is characterized in that the surface form of a steel wire rope to be detected is shot through a CCD technology, the defect shape can be displayed in a graphic mode when a fault occurs, the image characteristics are analyzed by using a graphic processing method, then the defect form and the defect size are led out, the defect degree can be visually displayed by the method, the precision is high only for detecting the near surface of the rope section, and the detection precision is limited when the surface of the rope section to be detected is not clean. The ultrasonic detection method is characterized in that ultrasonic signals act on a detected rope section, when the detected rope section has defects such as surface loss and broken wire, sound waves are reflected from the defect part, and the sound wave signals collected by receiving equipment contain the defect information of the steel wire rope, so that the method can well detect the broken wire inside and outside the steel wire rope, but the method is only suitable for detecting the end part of the steel wire rope and the defect close to the end part, is not suitable for the defect at a far position, and has lower precision when detecting the defect at the far position; the existing electromagnetic detection equipment is large in size and cannot be suitable for the narrow working condition of the steel wire rope in the airplane.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a device for quickly detecting the defects of a steel wire rope under a narrow working condition.
In order to achieve the purpose, the invention provides a device for rapidly detecting the defects of a steel wire rope under a narrow working condition, which is realized by the following steps: the steel wire rope to be detected penetrates through the magnetization part to be magnetized, the magnetized steel wire rope is detected through the linear magnetic sensor, when the steel wire rope is defective, the output value of the linear magnetic sensor changes, the control circuit board receives information collected by the linear magnetic sensor, when the detected part of the steel wire rope is defective, the control circuit board controls the buzzer and the warning lamp to send out alarm signals, after the steel wire rope passes through the rotary encoder, the rotary encoder identifies the moving displacement of the steel wire rope, and the control circuit board controls the LCD display screen to display the output voltage value of the linear magnetic sensor and the moving displacement value of the steel wire rope in real time. Can short-term test wire rope surface and near the defect signal on surface to send the police dispatch newspaper, for current quick magnetic leakage detection device, this device structure is simpler, light, the size is little, with low costs, more accurate, and the defect signal of a steel wire of detectable tapping wire rope, convenient to use and popularization especially under the operating mode of the narrow position that wire rope located in military aircraft, can replace traditional artifical the measuring, effective performance.
The utility model provides a wire rope defect short-term test device under narrow and small operating mode, the on-line screen storage device comprises a base and a top cap, wherein all be equipped with linear magnetic sensor on base and the top cap and place the hole, be used for placing linear magnetic sensor, both ends are equipped with two the same permanent magnet standing grooves respectively around the base, be used for placing the permanent magnet, both ends are equipped with the same billet standing groove respectively about the base, be used for placing the billet, it passes the hole to still be equipped with wire rope on the base, be used for wire rope to pass and detect after the hole is passed to wire rope, the latch hook is installed to base one side, install the hasp on the top cap of the correspondence one side of installing with the latch hook, two hinges are installed to the opposite side of base and.
Two steel bars are parallelly installed in two steel bar placing grooves, two pairs of permanent magnets are parallelly installed in the two permanent magnet placing grooves, the steel bars are in contact with the permanent magnets, the permanent magnets and the steel bars form a magnetizing part, a steel wire rope is magnetized, magnetic field signals around the magnetized steel wire rope are detected through a linear magnetic sensor, and a rotary encoder is installed at the position, at the outlet of a detection device, of the steel wire rope and is tightly connected with the steel wire rope for detecting the movement displacement of the steel wire rope.
Four identical linear magnetic sensors are arranged on the linear magnetic sensor placing holes on the base and the top cover and are used for being arranged at 90 degrees with each other.
According to the invention, N poles and S poles of a pair of permanent magnets are respectively fixed on the same steel bar at the same side of the steel wire rope at a distance of 8 cm to form a composite body, and the permanent magnets at the symmetrical positions of the two sides of the steel wire rope, which are close to one side of the steel wire rope, are both N poles or S poles.
The control circuit board, the warning lamp, the buzzer and the LCD display screen are arranged on the outer surface of the top cover of the invention, the control circuit board, the warning lamp, the buzzer and the LCD display screen are electrically connected, the warning lamp and the buzzer are used for providing acousto-optic warning information for users, the LCD display screen is used for displaying the output voltage value of the linear magnetic sensor and the displacement value of the movement of the steel wire rope in real time, the control circuit board processes the information collected by the linear magnetic sensor and the rotary encoder, the displacement values collected by the rotary encoder are in one-to-one correspondence with the voltage values output by the linear magnetic sensors in the control circuit board, once the detected part of the steel wire rope has defects, the control circuit board controls the LCD display screen to display the position of the steel wire rope with defects and the corresponding voltage value, and control warning light and bee calling organ to send alarm signal, the user just can find wire rope according to the displacement value that shows on the LCD display screen and have the defect position.
The basis for judging the defects of the steel wire rope by the control circuit board is as follows: the defect size of the steel wire rope is judged according to the change size of the output voltage of the linear magnetic sensor, when one steel wire of the steel wire rope to be detected is broken, the change size of the output voltage of the linear magnetic sensor is 20 millivolts, and the quantity of the broken steel wires of the steel wire rope to be detected can be judged according to the change size of the voltage value.
The control circuit board is provided with a signal amplification circuit, a filter circuit, an analog-to-digital conversion circuit and a singlechip minimum system circuit, because the output signal of the linear magnetic sensor is weak, the signal amplification circuit amplifies the signal acquired by the linear magnetic sensor, and the signal acquired by the linear magnetic sensor is noisy, so that the filter circuit filters the amplified signal, the analog-to-digital conversion circuit performs A/D conversion on the acquired signal, and the signal is finally input to the singlechip minimum system circuit for analysis and calculation.
The minimum system circuit of the single chip microcomputer adopts MC9S12X128 as a core.
The warning lamp comprises a red lamp and a green lamp, when the detected part of the steel wire rope has no defect, the control circuit board controls the green lamp to light, and when the detected part of the steel wire rope has defect, the control circuit board controls the red lamp to light and the buzzer to sound, so that a user is prompted that the steel wire rope has defect.
The linear magnetic sensor of the present invention employs a TMR2102 sensor.
Because the invention adopts the permanent magnet and the steel bar to form the magnetization part, magnetizes the steel wire rope, and detects the structure of the magnetic field signal around the magnetized steel wire rope through the linear magnetic sensor, the following beneficial effects can be obtained:
the magnetic wire rope detection device detects the magnetized steel wire rope through the linear magnetic sensor, converts magnetic field signals around the steel wire rope into voltage signals, controls the buzzer and the warning lamp to send out alarm signals when the detected part of the steel wire rope has defects, identifies the moving displacement of the steel wire rope through the rotary encoder after the steel wire rope passes through the rotary encoder, and controls the LCD display screen to display the output voltage value of the linear magnetic sensor and the moving displacement value of the steel wire rope in real time through the control circuit board. Can short-term test wire rope surface and near surface's defect signal to send out the police dispatch newspaper, for current quick magnetic leakage detection device. This device structure is simpler, light, the size is little, with low costs, more accurate, and the defect signal of a steel wire of detectable steel wire rope, convenient to use and popularization especially under the operating mode of the narrow position that steel wire rope located in military aircraft, can replace traditional artifical the measuring, effectively play a role.
Drawings
FIG. 1 is a schematic structural diagram of a base of a device for rapidly detecting defects of a steel wire rope under a narrow working condition;
FIG. 2 is a schematic structural diagram of the inside of a top cover of the rapid detection device for the defects of the steel wire rope under a narrow working condition;
FIG. 3 is a schematic view of a magnetized portion of the device for rapidly detecting defects of a steel wire rope under a narrow working condition;
FIG. 4 is a schematic view of the installation of a linear magnetic sensor of the device for rapidly detecting defects of a steel wire rope under a narrow working condition;
FIG. 5 is a schematic structural diagram of the outer surface of the top cover of the rapid detection device for the defects of the steel wire rope under a narrow working condition;
FIG. 6 is a schematic diagram of the rapid detection device for the defects of the steel wire rope under a narrow working condition.
The main elements are indicated by symbols.
| Base seat | 1 | |
2 |
| Linear magnetic sensor placing hole | 3 | Permanent magnet placing groove | 4 |
| Steel bar holding groove | 5 | The wire rope passes through the |
6 |
| Lock hook | 7 | Lock catch | 8 |
| Hinge (C) | 9 | |
10 |
| Steel bar | 11 | Linear |
12 |
| Rotary encoder | 13 | |
14 |
| |
15 | |
16 |
| |
17 |
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings.
Fig. 1 to 6 show a device for rapidly detecting a defect of a steel wire rope under a narrow working condition in the present invention, which includes a base 1 and a top cover 2.
As shown in fig. 1 and fig. 2, a linear magnetic sensor placing hole 3 is provided on each of the base 1 and the top cover 2 for placing a linear magnetic sensor 12, two identical permanent magnet placing grooves 4 are provided on the front and rear ends of the base 1 for placing a permanent magnet 10, identical steel bar placing grooves 5 are provided on the left and right ends of the base 1 for placing steel bars 11, a steel wire rope passing hole 6 is further provided on the base 1 for detecting the steel wire rope passing through the steel wire rope passing hole 6, the steel wire rope passing through the steel wire rope passing hole 6 enters a housing part formed by combining the base 1 and the top cover 2, i.e. a measured part of the steel wire rope, a latch hook 7 is installed on one side of the base 1, a latch 8 is installed on the top cover 2 on the side corresponding to the latch hook 7, two hinges 9 are installed on the other side of the base 1 and the top cover 2 for connecting the base 1 and the top cover 2 together, the device has simple structure, portability, small size and low cost.
Base 1 and top cap 2 all adopt plastic materials to process and form, the size after top cap 1 and top cap 2 close is high 2.5 centimetres, wide 3 centimetres, long 9 centimetres, overall structure is small and exquisite, can be applicable to the narrow space within range work that the inside wire rope of aircraft located.
As shown in fig. 3, the two steel bars 11 are installed in two steel bar placing grooves 5 in parallel, two pairs of permanent magnets 10 are installed in two permanent magnet placing grooves 4 in parallel, the steel bars 11 and the permanent magnets 10 contact each other, a magnetizing part is formed by the permanent magnets 10 and the steel bars 11, the steel wire rope is magnetized, a magnetic field signal around the magnetized steel wire rope is detected by a linear magnetic sensor 12, when the steel wire rope is defective, a voltage value output by the linear magnetic sensor 12 changes, the voltage signal collected by the linear magnetic sensor 12 is received by a control circuit board 14, and is amplified, filtered, subjected to analog-to-digital conversion and then conveyed to a minimum system of a single chip for processing, when the detected part of the steel wire rope is defective, an audible and visual alarm message is sent, a rotary encoder 13 is installed at an outlet position of the steel wire rope passing through a detection device and, the device is used for detecting the displacement of the movement of the steel wire rope, the steel wire rope advances to drive the rotary encoder 13 to rotate, and the specific position of the defect of the steel wire rope is calculated after the treatment of the output pulse of the rotary encoder 13.
As shown in fig. 4, four identical linear magnetic sensors 12 are mounted in the linear magnetic sensor mounting holes 3 of the base 1 and the top cover 2, and are used for mounting the four linear magnetic sensors 12 at an angle of 90 degrees with each other, so that the magnetic field change around the magnetized steel wire rope can be comprehensively detected, and further, the correspondingly changed voltage is output.
The specific installation positions of the permanent magnet 10 are as follows: at the same side of the steel wire rope, the N pole and the S pole of a pair of permanent magnets 10 are respectively fixed on the same steel bar 11 at a distance of 8 cm to form a complex, and the permanent magnets 10 at the symmetrical positions of the two sides of the steel wire rope, which are close to one side of the steel wire rope, are both the N pole or the S pole.
As shown in fig. 5, a control circuit board 14, a warning light 15, a buzzer 16 and an LCD display screen 17 are mounted on the outer surface of the top cover 2, the control circuit board 14, the warning light 15, the buzzer 16 and the LCD display screen 17 are electrically connected, the warning light 15 and the buzzer 16 are used for providing audible and visual alarm information for a user, the LCD display screen 17 is used for displaying the output voltage value of the linear magnetic sensor 12 and the displacement value of the movement of the steel wire rope in real time, the control circuit board 14 processes the information collected by the linear magnetic sensor 12 and the rotary encoder 13, the displacement value collected by the rotary encoder 13 in the control circuit board 14 corresponds to the voltage value output by the linear magnetic sensor 12 one to one, once the detected part of the steel wire rope has a defect, the control circuit board 14 controls the LCD display screen 17 to display the position where the steel wire rope has the defect and the corresponding voltage value, and controls the warning light 15 and the buzzer 16 to send an, the user can find the position of the steel wire rope with the defect according to the displacement value displayed on the LCD display screen 17.
The basis for the control circuit board 14 to judge the steel wire rope has defects is as follows: the defect size of the steel wire rope is judged according to the change size of the output voltage of the linear magnetic sensor 12, when one steel wire of the steel wire rope to be detected is broken, the change size of the output voltage of the linear magnetic sensor 12 is 20 millivolts, the number of broken steel wires of the steel wire rope to be detected can be judged according to the change size of the voltage value, a defect signal of one steel wire of the steel wire rope can be detected, the detection precision is effectively improved, the steel wire rope detection device is convenient to use and popularize, particularly, under the working condition of a narrow position where the steel wire rope is located in a military aircraft, the traditional manual detection can be replaced, and the effect is effectively exerted.
As shown in fig. 6, the control circuit board 14 is provided with a signal amplification circuit, a filter circuit, an analog-to-digital conversion circuit, and a minimum system circuit of a single chip microcomputer, and since the output signal of the linear magnetic sensor 12 is weak, the signal amplification circuit amplifies the signal acquired by the linear magnetic sensor 12, and the signal acquired by the linear magnetic sensor 12 is beset with noise, the filter circuit filters the amplified signal, the analog-to-digital conversion circuit performs a/D conversion on the acquired signal, and the signal is finally input to the minimum system circuit of the single chip microcomputer for analysis and calculation.
The minimum system circuit of the single chip microcomputer adopts MC9S12X128 as a core.
The warning lamp 15 is divided into a red lamp and a green lamp, when the detected part of the steel wire rope has no defect, the control circuit board 14 controls the green lamp to light, and when the detected part of the steel wire rope has defect, the control circuit board 14 controls the red lamp to light and the buzzer 16 to sound, so that the user is prompted that the steel wire rope has defect.
The linear magnetic sensor 12 is a TMR2102 sensor which can detect information of a change in magnetic field around a magnetized wire rope.
The power supply of the linear magnetic sensor 12, the rotary encoder 13, the control circuit board 14, the warning lamp 15, the buzzer 16 and the LCD display screen 17 is solved by an external storage battery or a charger for users.
The working principle and the working process of the invention are as follows:
as shown in fig. 6, after a steel wire rope passes through a steel wire rope through hole 6 and enters a housing formed by combining a base 1 and a top cover 2, a permanent magnet 10 and a steel bar 11 form a magnetization part to magnetize the steel wire rope, a magnetic field signal around the magnetized steel wire rope is detected by a linear magnetic sensor 12, the signal acquired by the linear magnetic sensor 12 is amplified by a signal amplification circuit, the amplified signal is filtered by a filter circuit, the acquired signal is subjected to a/D conversion by an analog-to-digital conversion circuit and is finally input to a minimum system circuit of a single chip microcomputer for analysis and calculation, a rotary encoder 13 detects the displacement information of the movement of the steel wire rope and transmits the displacement information to the minimum system circuit of the single chip microcomputer for processing, the displacement value acquired by the rotary encoder 13 corresponds to the voltage value output by the linear magnetic sensor 12 one by one to one in a control circuit board 14, once the detected part of the steel wire rope has defects, the control circuit board 14 controls the LCD display screen 17 to display the positions where the steel wire rope has defects and corresponding voltage values, and controls the warning lamp 15 and the buzzer 16 to send out alarm signals, and a user can find the positions where the steel wire rope has defects according to the displacement values displayed on the LCD display screen 17.
Claims (4)
1. The utility model provides a wire rope defect short-term test device under narrow and small operating mode which characterized in that: including base and top cap, wherein all be equipped with linear magnetic sensor on base and the top cap and place the hole, be used for placing linear magnetic sensor, both ends are equipped with two the same permanent magnet standing grooves respectively around the base, be used for placing the permanent magnet, both ends are equipped with the same billet standing groove respectively about the base, be used for placing the billet, still be equipped with wire rope on the base and pass the hole, it detects after passing the hole to be used for wire rope, install the latch hook on base one side, install the hasp on the top cap of the corresponding one side of installing with the latch hook, two hinges are installed to the opposite side of base and top cap, be used for linking together base and top cap, lock the top cap on the base through hasp and latch hook.
2. The device for rapidly detecting the defects of the steel wire rope under the narrow working condition according to claim 1, is characterized in that: two billet parallel mount are in two billet standing grooves, and two pairs of permanent magnet parallel mount are in two permanent magnet standing grooves, and billet and permanent magnet contact each other, form the magnetization part by permanent magnet, billet, magnetize the processing to wire rope, detect the magnetic field signal around the wire rope that is magnetized through linear magnetic sensor, and rotary encoder installs the exit position that wire rope passes through detection device, closely links to each other with wire rope for detect the displacement that wire rope removed.
3. The device for rapidly detecting the defects of the steel wire rope under the narrow working condition according to claim 1, is characterized in that: four identical linear magnetic sensors are arranged on the linear magnetic sensor placing holes on the base and the top cover and are used for being arranged at 90 degrees with each other.
4. The device for rapidly detecting the defects of the steel wire rope under the narrow working condition according to claim 2, is characterized in that: the specific installation position of the permanent magnet is as follows: at the same side of the steel wire rope, the N pole and the S pole of a pair of permanent magnets are respectively fixed on the same steel bar at a distance of 8 cm to form a composite body, and the permanent magnets at the symmetrical positions of the two sides of the steel wire rope, which are close to one side of the steel wire rope, are both the N pole or the S pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011391328.2A CN112415083A (en) | 2020-12-03 | 2020-12-03 | Steel wire rope defect rapid detection device under narrow working condition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011391328.2A CN112415083A (en) | 2020-12-03 | 2020-12-03 | Steel wire rope defect rapid detection device under narrow working condition |
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| CN112415083A true CN112415083A (en) | 2021-02-26 |
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| CN202011391328.2A Pending CN112415083A (en) | 2020-12-03 | 2020-12-03 | Steel wire rope defect rapid detection device under narrow working condition |
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| JPH07198684A (en) * | 1993-12-28 | 1995-08-01 | Tokyo Seiko Co Ltd | Wire rope damage detector |
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| CN103760222A (en) * | 2014-01-18 | 2014-04-30 | 中国矿业大学 | Mining steel wire rope online detection device and method based on giant magnetoresistance sensor array |
| CN103994998A (en) * | 2013-02-20 | 2014-08-20 | 烟台久新精密机械设备有限公司 | Nondestructive flaw detector for steel wire ropes |
| CN105929018A (en) * | 2016-05-31 | 2016-09-07 | 武汉华宇目检测装备有限公司 | Wheel type steel wire rope magnetic flux leakage detection probe |
| CN106290553A (en) * | 2016-08-02 | 2017-01-04 | 济南大学 | A kind of electromagnetic transducer system of novel detection defect in rope |
| CN106483192A (en) * | 2015-08-30 | 2017-03-08 | 中国矿业大学 | Defect in rope detecting system based on DSP |
| CN109283244A (en) * | 2018-08-01 | 2019-01-29 | 昆明理工大学 | A kind of wirerope non-destructive detection device based on TMR Magnetic Sensor |
| CN209086202U (en) * | 2018-11-12 | 2019-07-09 | 山东大学 | Damage of steel cable detector |
| CN214174235U (en) * | 2020-12-03 | 2021-09-10 | 河北工业大学 | Steel wire rope defect rapid detection device under narrow working condition |
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2020
- 2020-12-03 CN CN202011391328.2A patent/CN112415083A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07198684A (en) * | 1993-12-28 | 1995-08-01 | Tokyo Seiko Co Ltd | Wire rope damage detector |
| CN101013106A (en) * | 2006-02-01 | 2007-08-08 | 株式会社日立建筑系统 | Damage detecting device for wire rope |
| CN101311713A (en) * | 2007-05-23 | 2008-11-26 | 株式会社日立制作所 | Inspection equipment for wire rope |
| CN102879460A (en) * | 2012-09-18 | 2013-01-16 | 江苏申锡建筑机械有限公司 | Defect detecting system for steel wire rope |
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| CN109283244A (en) * | 2018-08-01 | 2019-01-29 | 昆明理工大学 | A kind of wirerope non-destructive detection device based on TMR Magnetic Sensor |
| CN209086202U (en) * | 2018-11-12 | 2019-07-09 | 山东大学 | Damage of steel cable detector |
| CN214174235U (en) * | 2020-12-03 | 2021-09-10 | 河北工业大学 | Steel wire rope defect rapid detection device under narrow working condition |
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